Connection terminal



Dec. 19, 1922.

R. ZOLLNER. I CONNECTION TERMINAL.

FILED APR- 6,1921.

. we far ZF/wessn':

I Patented 1 9, 1 922 p p v [UNITED STATES PATENT OFFICE.

, BUnoLF ztiLLNERfor DRESDEN, GERMANY.

CONNECTION TERMINAL.

' Application filed'April e,

To all whom it may concern: I

Be it known that I, RUnoLnZiSLL ER, a. citizen of the German Republic,and residing at Dresden, Germany, have invented certain new and usefulImprovements in Connection Terminals, of which the following is aspecification:

This invention relates to an improved connection-terminal for electricconductors, which has essential advantages: 1, it ensures an absolutesafe and permanent contact of the conductors to be connected; 2, theconductors can be easily and quickly attached thereto, whereby time issaved; 3, any screws and thus damage by the same to the conductors'to beconnected are omitted; 4, it "isabsolutely reliable, even when used inconnection with vibrating conductors, any faults in the connection ofthe conductors causing a heating of the latter or a flickering of thelight being thereby dispensed with.

In the accompanying drawing: Fig. l is a plan view of adistributionblock (with removed cover) containing a plurality of theimproved connection-terminals;

Fig. 2 is a perspective view of such a distribution-block with cover;

Figs. 3, 4, 5, and 6 show the single parts of the improvedconnection-terminal 'in perspective views;

Figs. 7 and 8 are partially sectional side views, at right angles to oneanother, showrup a, having parallel side mg the improvedconnection-terminal in its position of use. I

The distribution block comprises a porcelain base a having holes. 6 fora passage of the electric conductors therethrough and a plurality ofconnection-terminals attached thereto, the same being covered as shownat c.

The connection-terminal comprises a stirmembers, a closed head, andlower outwardly extending feet e; a coil spring 9; a washer it havingtwo notches i therein forming a tongue is between them; and a cap Z withdownwardly extending rim m having two similar notches n therein forminga tongue 0 between them.

Said stirrup d is lain base a, from below through a hole therein, thatis widened at its lower part for the reception of the feet e, which thusbear against the step formed by said lower wideninserted in said porce-1921. Serial No. 459,198.

I ing, the hole being filled-outwith cement f whereby the stirrup d isfirmly fixed in position.

.Thereupon, the coil-spring g is mounted over said stirrup d, the lowerend of said coil-spring bearing then upon the top of the porcelain basea, which is cessed for a safe reception of washer i1 is then so placedend of said coil-spring that itengages with its notches 2' over the sidemembers of said stirrup d, its tongue is engaging then in the spacebetween said side members. Finally, the ca Zis placed over said washerin such a way that its notches 12 engage also over the side members ofthe stirrup (Z and its tongue 0 in the space between said side members,'but from the opposite side thereof, so that the side members areembraced from both sides.

lVith empty connection-terminal, the cap l is allowed to move, by actionof said coilspring 9, in upward direction until itstongue 0 strikesagainst the underside of the closed head of the stirrup d.

For intended use of the connection-termipreferably rethe same. The uponthe upper 11211, the cap Zis depressed against the action oversaidwasher andhaving two similar notches forming a tongue between them,said washer and cap embracing the side members of said stirrup fromopposite sides, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses. 1

.RUDOLF ZOLLNER.

Witnesses:

MARTEN A. SHELM, FRIEDRICH RIEMER.

